﻿/* Copyright 2009 dnAnalytics Project.
 *
 * Contributors to this file:
 * Marcus Cuda
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * 
 * * Redistributions of source code must retain the above copyright notice, this 
 *   list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright notice, 
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 * * Neither the name of the dnAnalytics Project nor the names of its contributors
 *   may be used to endorse or promote products derived from this software without
 *   specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;

namespace dnAnalytics.Threading
{
    //needs to be flushed out.
    /// <summary>
    /// Represents multiple errors that occur during application execution.
    /// </summary>
    public class AggregateException : Exception
    {
        private readonly IList<Exception> _exceptions = new List<Exception>();

        /// <summary>
        /// Initializes a new instance of the AggregateException class with a specified error message and references to the inner exceptions that are the cause of this exception.
        /// </summary>
        /// <param name="exceptions">The exceptions that are the cause of the current exception.</param>
        public AggregateException(IEnumerable<Exception> exceptions)
        {
            foreach (var exception in exceptions)
            {
                _exceptions.Add(exception);
            }
        }

        /// <summary>
        /// Gets a read-only collection of the Exception instances that caused the current exception. 
        /// </summary>
        /// <value>A read-only collection of the Exception instances that caused the current exception</value>
        public ReadOnlyCollection<Exception> InnerExceptions
        {
            get { return new ReadOnlyCollection<Exception>(_exceptions); }
        }
    }
}